My understanding is that a shop that performs work on a vehicle to be
operated on the street that removes an emission component like the cat is
in violation of the law. In order to put 2 cats on it along with 2 O2
sensors would require the vehicle to be recertified which would cost about
$50K or more. Unless you have tubing benders and can do all the work
yourself, which is probably still illegal, you're likely to have a really
hard time finding a shop that'd even talk to you.
It's a Federal EPA reg, so it probably doesn't matter unless you live
someplace with stricter requirements. But you can LEGALLY put a 3" cat
back on it which will flow as much or more than a 2 1/4" dual exhaust.
Also don't know where there'd be room for two mufflers under there as the
gas tank occupies the muffler space on the left side.
Larry Elliott, '92, 3.9, 4x4, 5 sp'd, LE
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